Bewolking — 2023
| Month | Kelmis | Vaals | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 87.2 % | 100 % | -12.8 |
| Apr | 69.6 % | 68.3 % | +1.3 |
| May | 65.4 % | 65.1 % | +0.3 |
| Jun | 43.8 % | 43.3 % | +0.5 |
| Jul | 65.7 % | 65.9 % | -0.2 |
| Aug |
| 60.2 % |
| 60.1 % |
| +0.1 |
| Sep | 57.2 % | 57.7 % | -0.5 |
| Oct | 77.8 % | 77.5 % | +0.3 |
| Nov | 84.4 % | 81.6 % | +2.8 |
| Dec | 89.5 % | 88.2 % | +1.3 |